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a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1725453866; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=h8BaQiVelmckmlwaMiq3JJV9tWP+l6Wiavo1PrlqEfw=; b=sHloRYphbcPcSKqiucih/yLSUL36w/BhSkj2ll+Drz7CYdY+4s17bctErs09S4Y1g0sGnr h/payUctl4j0P6CQF99VFJVa8DK8q0qrvXPFpOMBRkvBkyjWV3UAV7IxvVHSamU8xGeAa1 V9N8SrRPC9me3WSqvbFybnxgIazJH7k= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1725453866; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=h8BaQiVelmckmlwaMiq3JJV9tWP+l6Wiavo1PrlqEfw=; b=slt3SS/xGT0eN2SRZjmTlV1Id1gj9yhgikuZce9b9GxLfQl9OB50J6XXm+UzW0MkGzbRlw yikVVqlXrEycq4BQ== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Peter Xu , Richard Henderson , Peter Maydell Subject: [PULL 03/34] tests/qtest/migration-test: Fix bootfile cleanup handling Date: Wed, 4 Sep 2024 09:43:46 -0300 Message-Id: <20240904124417.14565-4-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20240904124417.14565-1-farosas@suse.de> References: <20240904124417.14565-1-farosas@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 6DFE6219FF X-Spam-Score: -3.01 X-Rspamd-Action: no action X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-0.999]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim,suse.de:mid,suse.de:email,linaro.org:email]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_COUNT_TWO(0.00)[2]; DWL_DNSWL_BLOCKED(0.00)[suse.de:dkim]; RCPT_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[suse.de:+] X-Rspamd-Server: rspamd1.dmz-prg2.suse.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a07:de40:b251:101:10:150:64:1; envelope-from=farosas@suse.de; helo=smtp-out1.suse.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @suse.de) (identity @suse.de) X-ZM-MESSAGEID: 1725454061768116600 Content-Type: text/plain; charset="utf-8" From: Peter Maydell If you invoke the migration-test binary in such a way that it doesn't run any tests, then we never call bootfile_create(), and at the end of main() bootfile_delete() will try to unlink(NULL), which is not valid. This can happen if for instance you tell the test binary to run a subset of tests that turns out to be empty, like this: (cd build/asan && QTEST_QEMU_BINARY=3D./qemu-system-x86_64 ./tests/qtest/m= igration-test --tap -k -p bang) # random seed: R02S6501b289ff8ced4231ba452c3a87bc6f # Skipping test: userfaultfd not available 1..0 ../../tests/qtest/migration-test.c:182:12: runtime error: null pointer pas= sed as argument 1, which is declared to never be null /usr/include/unistd.h:858:48: note: nonnull attribute specified here Handle this by making bootfile_delete() not needing to do anything because bootfile_create() was never called. Signed-off-by: Peter Maydell Reviewed-by: Fabiano Rosas [fixed conflict with aee07f2563] Signed-off-by: Fabiano Rosas --- tests/qtest/migration-test.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c index 334b63cbaa..37ef99c980 100644 --- a/tests/qtest/migration-test.c +++ b/tests/qtest/migration-test.c @@ -145,6 +145,9 @@ static char *bootpath; =20 static void bootfile_delete(void) { + if (!bootpath) { + return; + } unlink(bootpath); g_free(bootpath); bootpath =3D NULL; @@ -156,10 +159,7 @@ static void bootfile_create(char *dir, bool suspend_me) unsigned char *content; size_t len; =20 - if (bootpath) { - bootfile_delete(); - } - + bootfile_delete(); bootpath =3D g_strdup_printf("%s/bootsect", dir); if (strcmp(arch, "i386") =3D=3D 0 || strcmp(arch, "x86_64") =3D=3D 0) { /* the assembled x86 boot sector should be exactly one sector larg= e */ --=20 2.35.3